Springboot error prompt application YML error

The main error messages are as follows:

Caused by: org. yaml. snakeyaml.error.YAMLException: java.nio.charset.Malforme

Caused by: org.yaml.snakeyaml.error.YAMLException: java.nio.charset. MalformedInputException: Input length = 1

I don’t understand the meaning of the second sentence now, but because I modify the application directly The suffix of the properties file has been changed to application yml

Solution:

Create a new file: application.yml, and then copy the old content, it is done!